Question

state one reason why is mechanical advantage less than the velocity ratio for an actual machine?

Answer 1

The mechanical advantage(M.A) of a real machine is always less than its velocity ratio(V.R) because mechanical advantage decreases due to the friction and weight of moving parts of the machine whereas the velocity ratio remains constant.

Answer 2

Answer:- it is because there is always some loss in energy in the form of friction etc; or in other words we can say its due to decrease in mechanical energy because of friction and weight of moving parts of the machine whereas the velocity ratio remains constant.

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